string a = "A";
string[] Ff = { "A", "B", "C" };
var ret=Ff as IList;
Console.WriteLine(ret.GetType());
Console.WriteLine(ret.Contains(a));
Console.Write("Press any key to continue . . . ");
Console.ReadKey(true);
string[] Ff = { "A", "B", "C" };
var ret=Ff as IList;
Console.WriteLine(ret.GetType());
Console.WriteLine(ret.Contains(a));
Console.Write("Press any key to continue . . . ");
Console.ReadKey(true);
上面输出了什么结果?